Question

Twenty corporations were asked whether or not they provide retirement benefits to their employees. Fourteen of the corporations said they do provide retirement benefits to their employees, and 6 said they do not. Five corporations are randomly selected from these 20. Find the probability that
a. Exactly 2 of them provide retirement benefits to their employees.
b. None of them provides retirement benefits to their employees.
c. At most one of them provides retirement benefits to employees.